******************************************************************************* JPL/HORIZONS Gleason (C/2003 A2) 2024-Apr-16 03:31:50 Rec #:90002966 (+COV) Soln.date: 2021-Apr-15_23:30:25 # obs: 148 (2002-2005) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2452772.5 ! 2003-May-13.0000000 (TDB) RMSW= n.a. EC= 1.006963536857116 QR= 11.42729387590735 TP= 2452947.79890528 OM= 154.5446257330101 W= 346.612069879771 IN= 8.061564728352648 A= -1641.018653362908 MA= -.002599040226744799ADIST= 9.999999E99 PER= 9.999999E99 N= 1.4826E-5 ANGMOM= .082380207 DAN= 11.58526 DDN= 1124.16726 L= 141.2842998 B= -1.8607731 MOID= 10.44139957 TP= 2003-Nov-04.2989052800 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 9.5 M2= n.a. k1= 4.75 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#18, data arc: 2002-01-08 to 2005-03-31 2: k1=4.75; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 16 03:31:50 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Gleason (C/2003 A2) {source: JPL#18} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1950-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2050-Jan-01 00:00:00.0000 TDB Step-size : 100 calendar years ******************************************************************************* Center geodetic : 0.0, 0.0, 0.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center radii : (undefined) Keplerian GM : 2.9630927493968080E-04 au^3/d^2 Small perturbers: Yes {source: SB441-N16} Output units : AU-D, deg, Julian Day Number (Tp) Calendar mode : Mixed Julian/Gregorian Output type : GEOMETRIC osculating elements Output format : 10 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2452772.5 ! 2003-May-13.0000000 (TDB) RMSW= n.a. EC= 1.006963536857116 QR= 11.42729387590735 TP= 2452947.79890528 OM= 154.5446257330101 W= 346.612069879771 IN= 8.061564728352648 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-8.097859015951716E+00 Y= 7.641862629244010E+00 Z= 2.722232115756553E+00 VX=-4.786604383345308E-03 VY=-5.236715319577560E-03 VZ=-1.215683552911868E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 9.5 M2= n.a. k1= 4.75 k2= n.a. PHCOF= n.a. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.995132884688933E-01 QR= 1.142263691675118E+01 IN= 8.065724336963903E+00 OM= 1.545672810748824E+02 W = 3.465969444039469E+02 Tp= 2452948.065885268617 N = 2.743172700495868E-07 MA= 3.599946053956523E+02 TA= 2.274340408664006E+02 A = 2.346900820445527E+04 AD= 4.692659377199378E+04 PR= 1.312349018109304E+09 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 9.984543812464699E-01 QR= 1.142172507331409E+01 IN= 8.068473818553549E+00 OM= 1.545274896093252E+02 W = 3.466624603841689E+02 Tp= 2452947.900928689633 N = 1.552570284567987E-06 MA= 2.617571252782169E-02 TA= 1.296316133340976E+02 A = 7.389742811563026E+03 AD= 1.476806389805274E+04 PR= 2.318735606228432E+08 $$EOE ******************************************************************************* TIME Barycentric Dynamical Time ("TDB" or T_eph) output was requested. This continuous coordinate time is equivalent to the relativistic proper time of a clock at rest in a reference frame co-moving with the solar system barycenter but outside the system's gravity well. It is the independent variable in the solar system relativistic equations of motion. TDB runs at a uniform rate of one SI second per second and is independent of irregularities in Earth's rotation. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. REFERENCE FRAME AND COORDINATES Ecliptic at the standard reference epoch Reference epoch: J2000.0 X-Y plane: adopted Earth orbital plane at the reference epoch Note: IAU76 obliquity of 84381.448 arcseconds wrt ICRF X-Y plane X-axis : ICRF Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense of Earth's north pole at the reference epoch. Symbol meaning [1 au= 149597870.700 km, 1 day= 86400.0 s]: JDTDB Julian Day Number, Barycentric Dynamical Time EC Eccentricity, e QR Periapsis distance, q (au) IN Inclination w.r.t X-Y plane, i (degrees) OM Longitude of Ascending Node, OMEGA, (degrees) W Argument of Perifocus, w (degrees) Tp Time of periapsis (Julian Day Number) N Mean motion, n (degrees/day) MA Mean anomaly, M (degrees) TA True anomaly, nu (degrees) A Semi-major axis, a (au) AD Apoapsis distance (au) PR Sidereal orbit period (day) ABERRATIONS AND CORRECTIONS Geometric osculating elements have NO corrections or aberrations applied. Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '2003 A2' TABLE_TYPE = 'ELEMENTS' START_TIME = '1950-01-01' STOP_TIME = '2050-01-01' STEP_SIZE = '100 years' CENTER = '@0' OUT_UNITS = 'AU-D'